It has been proven that hydroxychloroquine and chloroquine are ionophores the transport zinc into cells (theoretically the reason it works to stop the inner-cellular reproduction of the virus). I have found no scientific report that quinine alone or quinine in tonic water has a similar function. Perhaps you can point me to a study that proves that it does.
I didn’t say quinine alone will do the trick. I said tonic with quinine and Zinc supplements might be worth considering as a prophylactic adapted to everyday living, as a habit to guard against viruses taking root and getting out of control.